Question

Which of the following statement(s) about Digital-to-Analog (DAC) converter is/are correct?
(A) DAC is said to be monotonic if its output decreases as the binary input is incremented from one value to the next.
(B) Ideally, the output of a DAC should be zero when the binary input is zero.
(C) The operating speed of a DAC is usually specified by giving its settling time.
(D) Resolution is the reciprocal of the number of discrete steps in the full-scale output of the DAC.

• A. (A), (B), and (D) only
• B. (A), (B), and (C) only
• C. (A), (B), (C), and (D)
• D. (B), (C), and (D) only

Hint:

When working with DACs, ensure that you consider both resolution and settling time for accurate performance measurements.

Answer 1

The Correct Option is C

Step 1: Review each statement.
- Statement (A) is correct: DACs are monotonic if their output consistently increases or decreases with increasing binary input.
- Statement (B) is correct: Ideally, a DAC's output should be zero when the input is zero.
- Statement (C) is correct: DAC operating speed is usually specified by settling time, indicating output stabilization speed.
- Statement (D) is correct: Resolution is inversely proportional to the number of discrete output levels.

Final Answer: \[\boxed{3. \text{(A), (B), (C), and (D)}}\]